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Determines
whether the given parameter is a reference syntax to an existing object.
Parameters
Parameter
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Description
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v
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A valid reference syntax expression.
If v is
not a reference syntax, the function returns false (0).
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ExamplesThe
following expressions are examples that use the Exists function:
Expression
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Returns
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|---|
Exists(Item)
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True (1) if the object Item exists
and false (0) otherwise.
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Exists("hello world")
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False (0). The string is
not a reference syntax.
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Exists(Invoice.Border.Edge[1].Color)
|
True (1) if the object Invoice exists
and has a Border property, which in turn has at
least one Edge property, which in turn has a Color property.
Otherwise, the function returns false (0).
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